#223766 by nancyw - change term indicator selection to radios.
#223761 by nancyw - add clear cache button on settings page.
#220466 by nancyw for harking - corrected filter description pointer.
#48966 by nancyw for Andrés Chandía - added form to enter alphabar contents.
Added empty pic to line up when Taxo Img in use and no pic.
Moved settings to end in prep for 6.x.
#220458 by nancyw for harking - added dependency on taxonomy.
Missing period in help section.
#219670 - fixed user disable if feature off.
#219704 - restructure format settings page.
#219700 - clear cache on an format settings submit.
#219693 - added 'glossary/clearcache' to menu.
Added 'no cache' op to hook_filter.
Added check for mbstring.func_overload.
#208217 by mwrochna - performance enhancement.
Fixed related links to use setting.
Changed page-per-letter to use setting for descriptions.
Added settings link to the bottom
Fixing no description feature.
#208217 - escape mechanism (GHOP #135)
added variables to uninstall
#46711 - added setting for allowing no description.
#187218 - changed "detailed description" text.
fixed minor Coder review finds